Re: [RFC PATCH 0/2] cxl: BG operations and device sanitation

[Davidlohr Bueso]

On Thu, 04 Aug 2022, Dave Jiang wrote:

> From the operational sense everything looks good to me. As for the
> polling delay on overwrite, with pre-CXL pmem on Optane, we've
> discovered that overwrite can take a long time depending on the size.
> Sometimes MANY hours if the size is really large. We just opted to
> increment the polling interval as time went on [1] instead of based on
> size.

Thanks for having a look. Sure, we can do that, I have no particular attachment
to doing it based on size (it's just the way it occured to me). I am curious,
though: While regardless of size vs time based estimates, are the numbers
expected to be similar for volatile regions? All these numbers being from
nvdimm DSM docs.

Thanks,
Davidlohr